She is at singing. And I can play the guitar . A. well; good B. well; well C. good; well

问题补充：

She is at singing. And I can play the guitar .

A. well; good B. well; well C. good; well

答案：

解析：good是形容词，well是副词，前句be后跟形容词good，后句修饰动词play用well，故本题选C。